A complexometric titration is a titration based on the formation of a complex between metal ions and a ligand. The stoichiometric point is reached when the metal ions have been fully bound by the ligand in their combining ratio. Such titrations commonly use EDTA, which forms stable complexes with many metal ions.

配位滴定(络合滴定)是基于金属离子与配体形成配合物的滴定。当金属离子按其结合比例被配体完全络合时即达到化学计量点。这类滴定常使用 EDTA,它与许多金属离子形成稳定的配合物。